<template>
  <div class="my_div">
    <img
      src="https://scpic.chinaz.net/files/pic/pic9/202003/zzpic23514.jpg"
      alt=""
    />
    <p :style="{ backgroundColor: colors }" @click="dogBtn">
      这是一个孤独可怜的狗
    </p>
  </div>
</template>

<script>
export default {
  data() {
    return {
      colors: "",
    };
  },
  methods: {
    dogBtn() {
      this.colors = `rgb( ${Math.floor(Math.random() * 256)},
                          ${Math.floor(Math.random() * 256)},
                          ${Math.floor(Math.random() * 256)} )`
    },
  },
};
</script>

<style>
.my_div {
  width: 400px;
  border: 1px solid black;
  text-align: center;
  float: left;
}

.my_div img {
  width: 100%;
}
</style>